recompiled with ccache and changed option:
#ac_add_options --disable-cpp-rtti
aka commented out!

firefox-hg $ time ./mach run
 0:00.81 /tmp/obj-x86_64-pc-linux-gnu/dist/bin/firefox -no-remote -profile /tmp/obj-x86_64-pc-linux-gnu/tmp/scratch_user
[7121] WARNING: Unable to read system value: 'aValue > 0', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/xpcom/base/nsSystemInfo.cpp, line 908
[7121] ###!!! ASSERTION: What?: '!mDynamicLowerValue', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsContentSink.cpp, line 96
[7121] ###!!! ASSERTION: What?: 'mLastSampledUserEventTime == 0', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsContentSink.cpp, line 98
[7121] ###!!! ASSERTION: What?: 'mDeflectedCount == 0', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsContentSink.cpp, line 99
[7121] ###!!! ASSERTION: What?: 'mInMonolithicContainer == 0', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsContentSink.cpp, line 101
[7121] ###!!! ASSERTION: What?: 'mInNotification == 0', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsContentSink.cpp, line 102
[7121] ###!!! ASSERTION: What?: '!mDeferredLayoutStart', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsContentSink.cpp, line 103
[7121] WARNING: NS_ENSURE_SUCCESS(rv, rv) failed with result 0x80520012: file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/extensions/cookie/nsPermissionManager.cpp, line 2665
++DOCSHELL 0x7f32cabb0000 == 1 [pid = 7121] [id = 1]
++DOMWINDOW == 1 (0x7f32cabb0800) [pid = 7121] [serial = 1] [outer = (nil)]
++DOMWINDOW == 2 (0x7f32cabb2800) [pid = 7121] [serial = 2] [outer = 0x7f32cabb0800]
++DOCSHELL 0x7f32c501e800 == 2 [pid = 7121] [id = 2]
++DOMWINDOW == 3 (0x7f32c501f000) [pid = 7121] [serial = 3] [outer = (nil)]
++DOMWINDOW == 4 (0x7f32c5020000) [pid = 7121] [serial = 4] [outer = 0x7f32c501f000]
++DOMWINDOW == 5 (0x7f32c50ae000) [pid = 7121] [serial = 5] [outer = 0x7f32cabb0800]
[7121] ###!!! ASSERTION: Double-initing a frame?: '!mContent', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/layout/generic/nsFrame.cpp, line 520
[7121] ###!!! ASSERTION: Double-initing a frame?: '!mContent', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/layout/generic/nsFrame.cpp, line 520
[7121] ###!!! ASSERTION: Shouldn't happen: '!aNewFrame->GetNextSibling()', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/layout/base/nsCSSFrameConstructor.cpp, line 1251

Program /tmp/obj-x86_64-pc-linux-gnu/dist/bin/firefox (pid = 7121) received signal 11.
Stack:
#01: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x506acd9]
#02: ???[/usr/lib/libpthread.so.0 +0x10f00]
#03: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3dd7ff3]
#04: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3edb416]
#05: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3d72a2f]
#06: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3da01f3]
#07: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3da09c5]
#08: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3dbe8be]
#09: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3da167f]
#10: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3da18d7]
#11: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3da1be2]
#12: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3da99e0]
#13: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3dab207]
#14: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3e36940]
#15: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x1fcfc1b]
#16: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x1a1133c]
#17: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x1a41210]
#18: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x1a2e156]
#19: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x1a3b335]
#20: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0xb9b739]
#21: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0xbdff7b]
#22: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0xffbbca]
#23: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0xfc2b7a]
#24: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0xfc2c35]
#25: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3a1219c]
#26: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x46bf293]
#27: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x47665e8]
#28: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x47678c6]
#29: XRE_main[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x4767d2f]
#30: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/firefox +0x6129]
#31: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/firefox +0x5713]
#32: __libc_start_main[/usr/lib/libc.so.6 +0x20741]
#33: _start[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/firefox +0x5989]
#34: ??? (???:???)
Sleeping for 300 seconds.
Type 'gdb /tmp/obj-x86_64-pc-linux-gnu/dist/bin/firefox 7121' to attach your debugger to this thread.
^C

and installed:
$ fox
/tmp ~/build/1packages/firefox-hg
[7957] WARNING: '!compMgr', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/xpcom/glue/nsComponentManagerUtils.cpp, line 63
[7957] WARNING: dependent window created without a parent: file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/toolkit/components/startup/nsAppStartup.cpp, line 668
++DOCSHELL 0x7ff8bc273800 == 1 [pid = 7957] [id = 1]
++DOMWINDOW == 1 (0x7ff8bc274000) [pid = 7957] [serial = 1] [outer = (nil)]
++DOMWINDOW == 2 (0x7ff8bc275000) [pid = 7957] [serial = 2] [outer = 0x7ff8bc274000]
[7957] WARNING: NS_ENSURE_SUCCESS(rv, NS_ERROR_UNEXPECTED) failed with result 0x80004005: file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/extensions/cookie/nsPermissionManager.cpp, line 852
JavaScript error: jar:file:///usr/lib/firefox/omni.ja!/components/XULStore.js, line 66: NS_ERROR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIProperties.get]
[7957] WARNING: '!mLocalStore', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/xul/XULDocument.cpp, line 2035
[7957] ###!!! ASSERTION: Double-initing a frame?: '!mContent', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/layout/generic/nsFrame.cpp, line 520
[7957] ###!!! ASSERTION: Double-initing a frame?: '!mContent', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/layout/generic/nsFrame.cpp, line 520
[7957] ###!!! ASSERTION: Double-initing a frame?: '!mContent', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/layout/generic/nsFrame.cpp, line 520
[7957] ###!!! ASSERTION: Shouldn't happen: '!aNewFrame->GetNextSibling()', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/layout/base/nsCSSFrameConstructor.cpp, line 1251

Program firefox (pid = 7957) received signal 11.
Stack:
#01: ???[/usr/lib/libpthread.so.0 +0x10f00]
#02: ???[/usr/lib/firefox/libxul.so +0x3dd7ff3]
#03: ???[/usr/lib/firefox/libxul.so +0x3edb416]
#04: ???[/usr/lib/firefox/libxul.so +0x3d72a2f]
#05: ???[/usr/lib/firefox/libxul.so +0x3da01f3]
#06: ???[/usr/lib/firefox/libxul.so +0x3da09c5]
#07: ???[/usr/lib/firefox/libxul.so +0x3dbe8be]
#08: ???[/usr/lib/firefox/libxul.so +0x3d9ec0c]
#09: ???[/usr/lib/firefox/libxul.so +0x3daa265]
#10: ???[/usr/lib/firefox/libxul.so +0x3dab207]
#11: ???[/usr/lib/firefox/libxul.so +0x3e36940]
#12: ???[/usr/lib/firefox/libxul.so +0x38d8dfa]
#13: ???[/usr/lib/firefox/libxul.so +0x38f1603]
#14: ???[/usr/lib/firefox/libxul.so +0x38fa789]
#15: ???[/usr/lib/firefox/libxul.so +0x38fcf40]
#16: ???[/usr/lib/firefox/libxul.so +0x38efe67]
#17: ???[/usr/lib/firefox/libxul.so +0xb9b739]
#18: ???[/usr/lib/firefox/libxul.so +0xbdff7b]
#19: ???[/usr/lib/firefox/libxul.so +0x4458b35]
#20: ???[/usr/lib/firefox/libxul.so +0x43efd40]
#21: ???[/usr/lib/firefox/libxul.so +0x43f05d1]
#22: ???[/usr/lib/firefox/libxul.so +0xa73df6]
#23: ???[/usr/lib/firefox/libxul.so +0x476292a]
#24: ???[/usr/lib/firefox/libxul.so +0x4764c18]
#25: ???[/usr/lib/firefox/libxul.so +0x476785b]
#26: XRE_main[/usr/lib/firefox/libxul.so +0x4767d2f]
#27: ???[firefox +0x6129]
#28: ???[firefox +0x5713]
#29: __libc_start_main[/usr/lib/libc.so.6 +0x20741]
#30: _start[firefox +0x5989]
#31: ??? (???:???)
Sleeping for 300 seconds.
Type 'gdb firefox 7957' to attach your debugger to this thread.
^C

---------
recompiled latest and this is after installed:
[4287] WARNING: '!compMgr', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/xpcom/glue/nsComponentManagerUtils.cpp, line 63
[4287] WARNING: dependent window created without a parent: file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/toolkit/components/startup/nsAppStartup.cpp, line 668
++DOCSHELL 0x7f3283a74800 == 1 [pid = 4287] [id = 1]
++DOMWINDOW == 1 (0x7f3283a76000) [pid = 4287] [serial = 1] [outer = (nil)]
++DOMWINDOW == 2 (0x7f3283a77000) [pid = 4287] [serial = 2] [outer = 0x7f3283a76000]
[4287] WARNING: NS_ENSURE_SUCCESS(rv, NS_ERROR_UNEXPECTED) failed with result 0x80004005: file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/extensions/cookie/nsPermissionManager.cpp, line 852
JavaScript error: jar:file:///usr/lib/firefox/omni.ja!/components/XULStore.js, line 66: NS_ERROR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIProperties.get]
[4287] WARNING: '!mLocalStore', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/xul/XULDocument.cpp, line 2035
[4287] ###!!! ASSERTION: Double-initing a frame?: '!mContent', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/layout/generic/nsFrame.cpp, line 520
[4287] ###!!! ASSERTION: Double-initing a frame?: '!mContent', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/layout/generic/nsFrame.cpp, line 520
[4287] ###!!! ASSERTION: Double-initing a frame?: '!mContent', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/layout/generic/nsFrame.cpp, line 520
[4287] ###!!! ASSERTION: Shouldn't happen: '!aNewFrame->GetNextSibling()', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/layout/base/nsCSSFrameConstructor.cpp, line 1251

Program firefox (pid = 4287) received signal 11.
Stack:
#01: ???[/usr/lib/libpthread.so.0 +0x10f00]
#02: ???[/usr/lib/firefox/libxul.so +0x3dd7ff3]
#03: ???[/usr/lib/firefox/libxul.so +0x3edb416]
#04: ???[/usr/lib/firefox/libxul.so +0x3d72a2f]
#05: ???[/usr/lib/firefox/libxul.so +0x3da01f3]
#06: ???[/usr/lib/firefox/libxul.so +0x3da09c5]
#07: ???[/usr/lib/firefox/libxul.so +0x3dbe8be]
#08: ???[/usr/lib/firefox/libxul.so +0x3d9ec0c]
#09: ???[/usr/lib/firefox/libxul.so +0x3daa265]
#10: ???[/usr/lib/firefox/libxul.so +0x3dab207]
#11: ???[/usr/lib/firefox/libxul.so +0x3e36940]
#12: ???[/usr/lib/firefox/libxul.so +0x38d8dfa]
#13: ???[/usr/lib/firefox/libxul.so +0x38f1603]
#14: ???[/usr/lib/firefox/libxul.so +0x38fa789]
#15: ???[/usr/lib/firefox/libxul.so +0x38fcf40]
#16: ???[/usr/lib/firefox/libxul.so +0x38efe67]
#17: ???[/usr/lib/firefox/libxul.so +0xb9b739]
#18: ???[/usr/lib/firefox/libxul.so +0xbdff7b]
#19: ???[/usr/lib/firefox/libxul.so +0x4458b35]
#20: ???[/usr/lib/firefox/libxul.so +0x43efd40]
#21: ???[/usr/lib/firefox/libxul.so +0x43f05d1]
#22: ???[/usr/lib/firefox/libxul.so +0xa73df6]
#23: ???[/usr/lib/firefox/libxul.so +0x476292a]
#24: ???[/usr/lib/firefox/libxul.so +0x4764c18]
#25: ???[/usr/lib/firefox/libxul.so +0x476785b]
#26: XRE_main[/usr/lib/firefox/libxul.so +0x4767d2f]
#27: ???[firefox +0x6129]
#28: ???[firefox +0x5713]
#29: __libc_start_main[/usr/lib/libc.so.6 +0x20741]
#30: _start[firefox +0x5989]
#31: ??? (???:???)
Sleeping for 300 seconds.
Type 'gdb firefox 4287' to attach your debugger to this thread.
^C


--------
firefox-hg $ ./mach run
 0:00.78 /tmp/obj-x86_64-pc-linux-gnu/dist/bin/firefox -no-remote -profile /tmp/obj-x86_64-pc-linux-gnu/tmp/scratch_user
[32733] WARNING: Unable to read system value: 'aValue > 0', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/xpcom/base/nsSystemInfo.cpp, line 908
[32733] ###!!! ASSERTION: What?: '!mDynamicLowerValue', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsContentSink.cpp, line 96
[32733] ###!!! ASSERTION: What?: 'mLastSampledUserEventTime == 0', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsContentSink.cpp, line 98
[32733] ###!!! ASSERTION: What?: 'mDeflectedCount == 0', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsContentSink.cpp, line 99
[32733] ###!!! ASSERTION: What?: 'mInMonolithicContainer == 0', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsContentSink.cpp, line 101
[32733] ###!!! ASSERTION: What?: 'mInNotification == 0', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsContentSink.cpp, line 102
[32733] ###!!! ASSERTION: What?: '!mDeferredLayoutStart', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsContentSink.cpp, line 103
[32733] ###!!! ASSERTION: What?: '!mDynamicLowerValue', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsContentSink.cpp, line 96
[32733] ###!!! ASSERTION: What?: 'mLastSampledUserEventTime == 0', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsContentSink.cpp, line 98
[32733] ###!!! ASSERTION: What?: 'mDeflectedCount == 0', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsContentSink.cpp, line 99
[32733] ###!!! ASSERTION: What?: 'mInMonolithicContainer == 0', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsContentSink.cpp, line 101
[32733] ###!!! ASSERTION: What?: 'mInNotification == 0', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsContentSink.cpp, line 102
[32733] ###!!! ASSERTION: What?: '!mDeferredLayoutStart', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsContentSink.cpp, line 103
++DOCSHELL 0x7f674a94f800 == 1 [pid = 32733] [id = 1]
++DOMWINDOW == 1 (0x7f674aa7b800) [pid = 32733] [serial = 1] [outer = (nil)]
++DOMWINDOW == 2 (0x7f674a55b800) [pid = 32733] [serial = 2] [outer = 0x7f674aa7b800]
[32733] WARNING: NS_ENSURE_TRUE(document) failed: file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/extensions/cookie/nsPermissionManager.cpp, line 2004
[32733] WARNING: NS_ENSURE_SUCCESS(rv, false) failed with result 0x80004002: file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsDocument.cpp, line 5947
++DOCSHELL 0x7f6745807800 == 2 [pid = 32733] [id = 2]
++DOMWINDOW == 3 (0x7f6745808000) [pid = 32733] [serial = 3] [outer = (nil)]
++DOMWINDOW == 4 (0x7f6745809000) [pid = 32733] [serial = 4] [outer = 0x7f6745808000]
[32733] WARNING: NS_ENSURE_TRUE(document) failed: file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/extensions/cookie/nsPermissionManager.cpp, line 2004
[32733] WARNING: NS_ENSURE_SUCCESS(rv, false) failed with result 0x80004002: file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsDocument.cpp, line 5947
++DOMWINDOW == 5 (0x7f674581f800) [pid = 32733] [serial = 5] [outer = 0x7f674aa7b800]
[32733] WARNING: NS_ENSURE_TRUE(document) failed: file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/extensions/cookie/nsPermissionManager.cpp, line 2004
[32733] WARNING: NS_ENSURE_SUCCESS(rv, false) failed with result 0x80004002: file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/dom/base/nsDocument.cpp, line 5947
[32733] ###!!! ASSERTION: Double-initing a frame?: '!mContent', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/layout/generic/nsFrame.cpp, line 520
[32733] ###!!! ASSERTION: Double-initing a frame?: '!mContent', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/layout/generic/nsFrame.cpp, line 520
[32733] ###!!! ASSERTION: Shouldn't happen: '!aNewFrame->GetNextSibling()', file /home/z/build/1packages/firefox-hg/makepkg_pacman/firefox-hg/src/firefox-hg/layout/base/nsCSSFrameConstructor.cpp, line 1251

Program /tmp/obj-x86_64-pc-linux-gnu/dist/bin/firefox (pid = 32733) received signal 11.
Stack:
#01: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x50dc2b9]
#02: ???[/usr/lib/libpthread.so.0 +0x10f00]
#03: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3db2073]
#04: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3eb5276]
#05: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3d4caaf]
#06: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3d7a273]
#07: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3d7aa45]
#08: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3d9893e]
#09: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3d7b6ff]
#10: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3d7b957]
#11: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3d7bc62]
#12: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3d83a40]
#13: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3d85267]
#14: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x3e10980]
#15: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x1fad29b]
#16: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x19f341c]
#17: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x1a232f0]
#18: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x1a10236]
#19: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x1a1d415]
#20: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0xb98cb9]
#21: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0xbdd4fb]
#22: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0xff8f4a]
#23: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0xfbfefa]
#24: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0xfbffb5]
#25: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x39ebfdc]
#26: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x4698f73]
#27: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x47402c8]
#28: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x47415a6]
#29: XRE_main[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so +0x4741a0f]
#30: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/firefox +0x6129]
#31: ???[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/firefox +0x5713]
#32: __libc_start_main[/usr/lib/libc.so.6 +0x20741]
#33: _start[/tmp/obj-x86_64-pc-linux-gnu/dist/bin/firefox +0x5989]
#34: ??? (???:???)
Sleeping for 300 seconds.
Type 'gdb /tmp/obj-x86_64-pc-linux-gnu/dist/bin/firefox 32733' to attach your debugger to this thread.
^CPress any key to continue...

